The Stipeae are a tribe of grasses within the subfamily Pooidae, with up to 600 described species.[2]
| Stipeae | |
|---|---|
| |
| Celtica gigantea | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Poaceae |
| Clade: | BOP clade |
| Subfamily: | Pooideae |
| Supertribe: | Stipodae |
| Tribe: | Stipeae Dumort. |
| Genera | |
|
28 genera, see text | |
| Synonyms[1] | |
| |
Description
editThe defining morphological features of the Stipeae include single-flowered spikelets lacking a rachilla extension, and the lemmas (the external bract) have either a sharp point or a terminal awn (long bristle).[3]
Genera
editThe tribe includes 32 genera:[1][4][5]
- Achnatherum P.Beauv. (syn. Aristella)
- Aciachne Benth.
- Amelichloa Arriaga & Barkworth
- Anemanthele Veldkamp
- Austrostipa S.W.L.Jacobs & J.Everett
- Barkworthia Romasch., P.M.Peterson & Soreng
- Celtica F.M.Vázquez & Barkworth
- Eriocoma Nutt.
- × Eriosella Romasch.
- Hesperostipa (Elias) Barkworth
- Jarava Ruiz & Pav.
- Lorenzochloa Reeder & C.Reeder
- Macrochloa Kunth
- Nassella (Trin.) É.Desv.
- Neotrinia (Tzvelev) M.Nobis, P.D.Gudkova & A.Nowak
- Oloptum Röser & Hamasha
- Ortachne Nees ex Steud.
- Orthoraphium Nees
- Oryzopsis Michx.
- Pappostipa (Speg.) Romasch., P.M.Peterson & Soreng
- Patis Ohwi
- Piptatheropsis Romasch., P.M.Peterson & Soreng
- Piptatherum P.Beauv.
- Piptochaetium J.Presl.
- Psammochloa Htchc.
- Pseudoeriocoma Romasch., P.M.Peterson & Soreng
- Ptilagrostiella Romasch., P.M.Peterson & Soreng
- Ptilagrostis Griseb.
- Stipa L.
- Stipellula Röser & Hamasha (syn. Stipella)
- Thorneochloa Romasch., P.M.Peterson & Soreng
- Timouria Roshev.
- Trikerala Bor
Many species initially placed into Stipa have now been split off into new genera. Some recent papers have analysed relationships within and between the genera,[6][7][8] but a complete analysis has not yet been performed. Stipoid grasses use the C3 photosynthetic pathway and live in temperate areas worldwide.[9]
References
edit- ^ a b Soreng, Robert J.; Peterson, Paul M.; Romaschenko, Konstantin; Davidse, Gerrit; Teisher, Jordan K.; Clark, Lynn G.; Barberá, Patricia; Gillespie, Lynn J.; Zuloaga, Fernando O. (2017). "A worldwide phylogenetic classification of the Poaceae (Gramineae) II: An update and a comparison of two 2015 classifications". Journal of Systematics and Evolution. 55 (4): 259–290. doi:10.1111/jse.12262. hdl:10261/240149. ISSN 1674-4918.
- ^ Barkworth ME, Arriaga MO, Smith JF, Jacobs SWL, Valdes-Reyna J, Bushman BS (2008) Molecules and Morphology in South American Stipeae (Poaceae). Systematic Botany 33(4), 719-731.
- ^ Cialdella AM, Giussani LM, Aagesen L, Zuloaga FO, Morrone O (2007) A phylogeny of Piptochaetium (Poaceae : Pooideae : Stipeae) and related genera based on a combined analysis including trnL-F, rp116, and morphology. Systematic Botany 32(3), 545-559.
- ^ Peterson PM, Romaschenko K, Soreng RJ, Valdés Reyna J (2019) A key to the North American genera of Stipeae (Poaceae, Pooideae) with descriptions and taxonomic names for species of Eriocoma, Neotrinia, Oloptum, and five new genera: Barkworthia, × Eriosella, Pseudoeriocoma, Ptilagrostiella, and Thorneochloa. PhytoKeys 126: 89-125. https://doi.org/10.3897/phytokeys.126.34096
- ^ "Poaceae Barnhart". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 27 October 2024.
- ^ Barber, Janet C.; Hames, Kasey A.; Cialdella, Ana Maria; Giussani, Liliana M.; Morrone, Osvaldo (2009). "Phylogenetic relationships of Piptochaetium Presl (Poaceae: Stipeae) and related genera reconstructed from nuclear and chloroplast sequence datasets". Taxon. 58 (2): 375–380. doi:10.1002/tax.582005. ISSN 0040-0262. pdf
- ^ Jacobs SWL, Bayer R, Everett J, Arriaga MO, Barkworth ME, Sabin-Badereau A, Torres MA, Vazquez FM, Bagnall N (2007) Systematics of the tribe Stipeae (Gramineae) using molecular data. Aliso 23, 349-361.
- ^ Jacobs SWL, Everett J, Barkworth ME, Hsiao C (2000) Relationships within the Stipoid grasses (Gramineae). In 'Grass Systematics and Evolution.' (Eds SWL Jacobs and J Everett) pp. 75-82. (CSIRO: Melbourne)
- ^ Romaschenko K, Peterson PM, Soreng RJ, Garcia-Jacas N, Futorna O, Susanna A (2008). "Molecular phylogenetic analysis of the American Stipeae (Poaceae) resolves Jarava sensu lato polyphyletic: evidence for a new genus, Pappostipa". Journal of the Botanical Research Institute of Texas. 2 (1): 165–192. JSTOR 41971613.
{{cite journal}}: CS1 maint: multiple names: authors list (link) pdf - ^ Thomasson, Joseph R. (2005). "Berriochloa Gabeli and Berrichloa Huletti (Graminae: Stipeae), two new grass species from the late miocene Ash Hollow Formationof Nebraska and Kansas". Journal of Paleontology. 79 (1): 185–199. Bibcode:2005JPal...79..185T. doi:10.1666/0022-3360(2005)079<0185:BGABHG>2.0.CO;2. ISSN 0022-3360. pdf
External links
edit- Stipa L. sensu lato (sensu lato refers to the tribe) The grass genera of the world website by L. Watson, T.D. Macfarlane, and M.J. Dallwitz